Liquid-fuel stove



L; T. WILCOX. LIQUID FUEL sTovE.

AFPUCATION FILED 1AN3||19|6. 1,355,933. Patented Oct. 19, 1920.

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- Inventor:

L. T. WILCOX. LIQUID FUEL STOVE. APPLICATIQN r|LED 1AN.3|,1916.

` Patented Oct. 19, 1920..

2 SHEETS-SHEET 2.

' Affy -uNll-"lazl l`s1ATEs PATENT oFFlcE.

LEWIS T. WILCOX, 0F PEEKSKILL, YORK.

lLrtwIn-FUEL sTovE. j,

To all whom it may concern Be it known that I, Lnwrs T. WILooX, a citizen ofthe United States, residing at Peekskillfin the county of` Westchester and State of N ew York, have invented new and useful Improvements in Liquid-Fuel j. Stoves, of which the followingV is aV specificatlon.

The improvements relate to stoves adapted to use liquid hydrocarbon -as a fuel. In such stoves the liquid is first broken up into fine particles by a wick, or in some other manner, and presented to the heat` of the flame in Athis form for vaporization, 'then mixed with oxygen to form carbon monoxid and then completely consumed, theresult `being the usual'carbon dioxid or carboni'c acid gas. The improvements relate to cooking burners, and in these burners the ord1-" n'ary blue flame combustion cone, consisting Jof concentric perforated cylinders-between which the process of combustion is carried on, are usually employed. Where the lighter hydrocarbons are useda slight disturbance of the conditions in which the combustion takes place is not ordinarily produc-` tive of undesirable results, but where kerosene or otherheavy hydrocarbon is used as.

a fuel the most favorable conditions must be very carefully observed, and disturbance carefully guarded against. Consequently some of the uses to which the lighter hydrocarbons have been put havey not yet been realized `with the desirable and available heavy hydrocarbons.

yOne of the objects of the present provements is to provide a burner whichv may be used with kerosene or otherrela- `tively heavy hydrocarbon liquid fuel in conjunction with an oven and a boiler, in addition to the` usual cooking hole above the burners/without disturbing, the operation of the blue flamel or other combustion device employed and. which will operate under the" different adjustments required in an/elicientv and satisfactory manner. Another object to so construct and arrange the device that it may be'lembodied in an ordinary coal range and used separately or in conjunction therewith'. The nature and details of the improvevments are hereinafter described and claimed and illustrated in the accompanying drawings, in which Figure l is a plan `of a one burner stove, embodying the improvements a portion being cut away; Fig. 2 is a vertical sectlon of the same with an oven shown vin front elevation on the line 2-2 of Fi being shown in this view taken on the same plane; i 4 is a vertical section on the line {1 /fof F 1g. 1 looking in the direction indicated by thearrows; Fig. 5 is an.. enlarged vertical section on the line 5 -5 -of Fig. 1.

The blue flame combustion ychamber A is 'suitably'mounted andl supplied with fuel,

and has its top immediately below the grid B on the cooking hole K, so thatvthe iiame and heated products of combustion will l j play against the bottom of a cooking utensil placed onsaid grid. v The grid consists 'of a x specification of Letters Patent. Patentedict, 19, 1920. i Application mea January a1, 191s. serial` No. 75,332. I

ring B and spiral prongs B2l extending therefrom to a point near the middle of the opening.v Theseprongs are of blade-like form and extend` below the ring Bf which is flat andis lsupported by having4 its edges resting on the stove top C. It will be seen ythat these spiral prongs give the heated products of the burnerA a 'whirling motion and cause them to travelin a manner simll r to the movement of fluids under` cent ifugalforce. This causes the said heated products to seek escape laterally, particularly when a .cooking utensilor cover is placed on the grid Band to pass ofl' through the oven flue F8 or the grid B of the auxiliary cooking holed', las the case may be, when the damper D is manipulated so as to open 1 one or the other.l

The stove top E .has t'he rectangular inset C, forming v a part of thesaid top and provided with the cooking holes J and K. If desired thisl construction 'may be repeated so asto provide any desired number of cooking holes fora. corresponding number of burners. z

` Depending from theptop and surrounding the cooking hole K isa shield and guide F in the form of a skirt like an inverted truncated cone. Itis supported by being secured to the underside of the top by means of suitable lugs receiving bolts or other f astening means, and has a neck F2 extending to the auxiliary hole and an 'opening leading. to the flue entrance yF. The neck F2 is slightly Acontracted las it extends outwardly, and terminates at the pan H, which terminates in the depending flange E of the top 'E andis "supported thereby. As the bottom of this pan is upwardly inclined, a continuous channel gradually decreasing in depth is formed by the neck F 2 and the said pan. At the outer part of the pan and in its bottom are a series of .orifices H', through which the heated combustion products may escape when the opening J is closed by acooking utensil or otherwise. The channel just mentioned is divided into a series of outwardly Haring longitudinal compartments by the depending flanges G of the fanlike grid Gr, and these ianges are l connected by the cross strips, G2 and G3,

so that these three parts form a rigid grid member, upon which a cooking utensil may be supported. y

The inner edge of the pan H is supported on the horizontal flange F4 of the neck F2, and the inner edge of the flue member F5 supports the edge of the shield F at the flue opening. likt the outer end of this member is an opening F6 protected by a baflieplate F 7, so that the combustion products may escape therethrough when for any reason they cannot pass freely through the flue F3 into the oven. By these provisions the heat is directed to the auxiliary cooking hole and the iiue in such a manner that it will pass freely thereto, and at the same time the choking of the burner and the consequent interference with the combustion are avoided.A The lower 'edge of the depending shield and guide F is about at the top of the burner, but as the1 diameter of the said shield is greater than that of the burner an annular space is provided between them through which air may pass to supply the combustion at the top of the burner and increase the volume of heated fluid. r

The damper mechanism extends around the inside at the upper part of F through an arc of approximately 270 degrees and is provided with a handle D2 having a pin D3 extending through a slot D4, by which the movement of the said handle and damper are limited to approximately 90 degrees of the circumference of the hole B. The damper D', which controls the supply of heat to the auxiliary opening, has a depending portion D5 conforming substantially to the size and shape of the opening to the neck F2, so that it will completely close the said opening, when in closed position. Asthe principal use of the auxiliaryopening is for boiling it is desirable to have a sign on the handle D2, which is brought into view when the boiler is in operation. This is illustrated in Fig. 5. and as the stoye is operated from the right hand end, as shown in Fig. 5 of the drawings,

this sign will be visible only when lthe dam-l 1n order to open the damper to the boiler or the oven it is necessary only to move the handle D2 in one direction or the other, until its pin comes in contact with the end of the slot (see dotted lines Fig. l). Thus when the handle is moved to its extreme position on the right the oven damper is closed and the boiling damper opened, and when it is moved in the opposite direction the oven damper is openedand the boiling damper closed. If desired the damper may be so constructed and arranged that both openings may be used at the same time. This may be done by having the two dampers disconnected and constructed toy be operated by separate handles.

The oven L is mounted at the top of the flue F? in any suitable manner, and receives the heat from the burner through the intermediate compartment M, which tapers up wardly from the outlet of the flue to the openings L in its bottom at the front. Small openings L2 through which the heat- 'ed airof the oven may escape are provided at the bottom of the oven on the side opposite the openings L. The oven is preferso as to insulate the interior, and the front of the oven is provided with a hinged door L5 vof similar construction.

What I claim is: v

l. The combination with a liquid' fuel burner of, a stove top, yprovided with an opening adapted to be positioned over the burner and to permit the free passage of heat and combustion products therethrough and a grate located in said opening, comprising a supporting frame and curved members extending from the outer portion of said grate inwardly toward the center thereof and toward the center of said opening from all sides thereof, and a plurality A similar signas ably provided with double walls L3 and L4L of conduits leading from a point between i duits leading from a point between the said burner and grate in different lateral directions, and a damper constructed and arranged to close oneof sald conduits and iso ' burner and to permit I burner of a stove top,

open the other when moved in one direction, and to open the one and close the other when moved in the opposite direction. l

3. The combination with a liquid fuel top, provided with an be positioned over the the free passage of heat`and combustion products therethrough and a grate located in said opening, comprising a supporting frame and curved members extending from the outer portion of said grate inwardly toward the center thereof. and toward the center of said opening from all sides thereof, and 'a conduit leading from a point between the said grate and burner in a lateral direction, an upwardly extending Hue communicating with said conduit andY a heating compartment mounted above the grate and in communicaburner of a stove opening adapted to tion with said flue.

4c. The combination with a liquid fuel provided with an opening adapted to be positioned over the burner and to permit the free passage of heat and combustion products therethrough and a grate located in said opening, comprising a supporting frame and curved members extending from the outer portion 'of said grate inwardly. toward the center the'reof and toward the center of saidopening from all sides thereof, and a conduit leading from a point grate and burner ina lateral direction, an upwardly extending 4flue communicating with said conduit and a heating compartment mounted above the grate and in communication with said flue, said conduit having an opening below the point of communication with said flue. l

- In testimony whereof I have hereunto set my hand in presence of the subscribing witness.

' p LEWIS T. WILCOX. Witness :v I

between the said MARY H. LEWIS. y 

